/Engine/Source/Runtime/AVEncoder/Public/VideoEncoderInput.h
New packet callback prototype void(uint32 LayerIndex, const FCodecPacket& Packet)
typedef [TFunction](API\Runtime\Core\GenericPlatform\TFunction)< void(const [FVideoEncoderInputFrame](API\Runtime\AVEncoder\FVideoEncoderInputFrame) *)> OnFrameReleasedCallback